//bus总线
import mitt from 'mitt'
export const EventBus = mitt()

export function isvalidPhone(phone) {
  const isPhone = /^1([38][0-9]|4[014-9]|[59][0-35-9]|6[2567]|7[0-8])\d{8}$/ //11位合法手机号码
  const isMob1 = /0\d{2,3}\d{7,8}/ //不带-的座机：02985111752
  const isMob2 = /^([0-9]{3,4}-)?[0-9]{7,8}$/ //带一个-：029-85111752
  const isMob3 = /^\d{3,4}-\d{3,4}-\d{3,4}$/; //带三个-： 0752-250-520
  if (isMob1.test(phone) || isMob2.test(phone) || isMob3.test(phone) || isPhone.test(phone)) {
    return true
  } else {
    return false
  }
}

//正确的座机
export function validatePhoneNumber(phoneNumber) {
  // 常见的座机号码格式
  const regex = /^0\d{2,3}-\d{7,8}(-\d{1,4})?$/;

  if (regex.test(phoneNumber)) {
    return true;
  } else {
    return false;
  }
}
//查找localstorage数据
export const newMemberList = (data, list)=> {
	// 使用 reduce 构建新的合并数组
	const mergedArray = data.concat(
		list.reduce((acc, currentItem) => {
		// 如果 data 中没有相同的 id，则添加到累加器中
		if (!data.find(item => item.id === currentItem.id)) {
			acc.push(currentItem)
		}
			return acc
		}, [])
	)
	return mergedArray
}

export function validEmail(email) {
  const reg = /^[a-zA-Z0-9_.-]+@[a-zA-Z0-9]+(\.[a-zA-Z0-9-]+)*\.[a-zA-Z0-9]{2,6}$/
  return reg.test(email)
}

//查询最顶部的数据id
export function findTopParentId(targetId, arr) {
  for (const item of arr) {
      if (item.id === targetId) {
          return targetId;
      }
      if (item.children && item.children.length > 0) {
          const result = findTopParentId(targetId, item.children)
          if (result) {
              return item.id;
          }
      }
  }
  return null;
}

//路由数据组合函数
export function buildTree(data) {
  const map = new Map();
  const result = [];

  // 创建一个映射表，以便快速查找每个元素
  data.forEach(item => {
      map.set(item.id, { ...item, children: [] });
  });

  // 构建树结构
  data.forEach(item => {
      const node = map.get(item.id);
      if (item.pId === null || !map.has(item.pId)) {
          // 如果是根节点，添加到结果数组中
          result.push(node);
      } else {
          // 如果不是根节点，找到其父节点并添加到父节点的 children 数组中
          const parent = map.get(item.pId);
          if (parent) {
              parent.children.push(node);
          }
      }
  });

  return result;
}

//获取基本路径
export function getBasePath(url) {
  if (url === null) {
    return url
  }
  if (url && url.includes('?')) {
    return url.split('?')[0]
  }
  if (url && !url.includes('?')) {
    return url
  }
}
//递归写法
export function mapRecursive (arr, callback) {
  return arr.map(item => {
      const newItem = callback(item); // 处理当前项
      if (item.children && item.children.length !== 0) {
          newItem.children = mapRecursive(item.children, callback); // 递归处理子项
      }
      return newItem;
  })
}
export function extractKeys(data) {// 递归函数，用于提取所有的 key
  return data.reduce((names, item) => {
    // 将当前项的 name 添加到结果数组中
    if(item.children && item.children.length) {
      names.push(item.key)
    }
    // 如果当前项有 children，并且 children 是一个数组，则递归调用 extractNames
    if (Array.isArray(item.children)) {
      names.push(...extractKeys(item.children))
    }
    return names
  }, [])
}

//菜单相关操作函数
// 默认选中第一个菜单key
export const getFirstLeafName = data=> {
  if (!Array.isArray(data) || data.length === 0) return null;
  // 获取第一个对象的 children 数组
  const firstItem = data[0];
  if (!firstItem || !Array.isArray(firstItem.children) || firstItem.children.length === 0) return null;
  // 获取 b 的 children 数组
  const bChildren = firstItem.children[0]?.children
  if (!bChildren || bChildren.length === 0) return null

  // 返回 b 的 children 中第一个没有 children 的对象的 key
  return bChildren.find(child => !child.children || child.children.length === 0)?.key
}
export function findAndCheckById(tree, targetId) {
  function traverse(node) {
    // 如果当前节点的 id 匹配目标 id
    if (node.id === targetId) {
      node.checked = true;
      return true; // 找到目标对象，停止递归
    }

    // 如果当前节点有 children，并且 children 是数组
    if (Array.isArray(node.children)) {
      for (let i = 0; i < node.children.length; i++) {
        if (traverse(node.children[i])) {
          return true; // 如果子节点找到了目标对象，停止递归
        }
      }
    }

    return false; // 没有找到目标对象
  }

  // 遍历顶层节点
  for (let i = 0; i < tree.length; i++) {
    if (traverse(tree[i])) {
      break; // 找到目标对象后，停止遍历
    }
  }

  return tree; // 返回更新后的树结构
}

//路由菜单权限递归
export function hasLinkInMenu (menu, path) {
  // 遍历当前层级的菜单项
  return menu.some(item => {
    // 检查当前项是否有 children，并且 children 是否包含符合条件的链接
    if (item.children && item.children.length > 0) {
      // 递归调用，检查子菜单
      return hasLinkInMenu(item.children, path)
    }
    // 检查当前项的 link 是否包含指定路径
    return item.componentPath ? item.componentPath.includes(path) : false
  })
}
//数据递归
export function setCheckedFalse(data) {
  if (!Array.isArray(data)) return

  for (let item of data) {
    // 设置当前项的 checked 为 false
    item.checked = false

    // 如果当前项有 children，并且 children 是数组，则递归调用
    if (Array.isArray(item.children)) {
      setCheckedFalse(item.children)
    }
  }
  return data
}

//数据递归-头部菜单
export function setHeaderMenuFalse (data) {
  if (!Array.isArray(data)) return

  for (let item of data) {
    // 设置当前项的 checked 为 false
    item.selectSidebar = false

    // 如果当前项有 children，并且 children 是数组，则递归调用
    if (Array.isArray(item.children)) {
      setHeaderMenuFalse(item.children)
    }
  }
  return data
}

//数据格式
export function processItem (item) {
  return {
    ...item,
    name: item.componentPath,
    path: item.componentPath,
    pId: item.pId,
    component: () => import('@/views/Home/Index'),
    key: item.id,
    iframeUrl: item.iframeUrl,
    id: item.id,
    show: true,
    targetType: item.targetType,
    icon: item.pId ? 'RightOutlined' : ''
  }
}

//会员插件ctrl-shift和框选
let selectStartIndex = null
let selectionStartIndex = null
let isSelecting = false
export function addSelectedKey (data) {
  return data.map(i=> {
    i.selected = false
    return i
  })
}
export const selectListItem = (item, event, leftList)=> {
	if (event.ctrlKey || event.metaKey) {
		// Ctrl 或 Command 键选择
		item.selected = !item.selected;
	} else if (event.shiftKey) {
		// Shift 键选择范围
		if (selectionStartIndex !== null) {
			const startIndex = leftList.findIndex(i => i.id === selectionStartIndex);
			const endIndex = leftList.findIndex(i => i.id === item.id);
			leftList.forEach((i, index) => {
				if (index >= Math.min(startIndex, endIndex) && index <= Math.max(startIndex, endIndex)) {
					i.selected = true;
				}
			});
		}
	} else {
		// 单独选择
		leftList.forEach(i => i.selected = false);
		item.selected = true;
		selectionStartIndex = item.id;
	}
}
export const startSelection = (event, index, leftList)=> {
	event.preventDefault()
	selectStartIndex = index
	if (!event.ctrlKey && !event.shiftKey) {
		isSelecting = true;
		selectionStartIndex = leftList.find(i => i.selected)?.id;
		selectRange(index, index, leftList);
	}
}
export const endSelection = ()=> {
	
	isSelecting = false;
}
export const continueSelection = (event, index, leftList)=> {
	event.preventDefault()
	
	if (isSelecting) {
		
		selectRange(selectStartIndex, index, leftList)
	}
}
const selectRange = (startIndex, endIndex, leftList)=> {
	const start = Math.min(startIndex, endIndex);
	const end = Math.max(startIndex, endIndex);
	
	
	leftList.forEach((item, index) => {
		item.selected = index >= start && index <= end ? true : item.selected
	})
}
// 会员插件ctrl-shift和框选
/**
 * Parse the time to string
 * @param {(Object|string|number)} time
 * @param {string} cFormat
 * @returns {string | null}
 */
export function parseTime(time, cFormat) {
  if (arguments.length === 0 || !time) {
    return null
  }
  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
  let date
  if (typeof time === 'object') {
    date = time
  } else {
    if ((typeof time === 'string')) {
      if ((/^[0-9]+$/.test(time))) {
        // support "1548221490638"
        time = parseInt(time)
      } else {
        // support safari
        // https://stackoverflow.com/questions/4310953/invalid-date-in-safari
        time = time.replace(new RegExp(/-/gm), '/')
      }
    }

    if ((typeof time === 'number') && (time.toString().length === 10)) {
      time = time * 1000
    }
    date = new Date(time)
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  }
  const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
    const value = formatObj[key]
    // Note: getDay() returns 0 on Sunday
    if (key === 'a') { return ['日', '一', '二', '三', '四', '五', '六'][value ] }
    return value.toString().padStart(2, '0')
  })
  return time_str
}

// 当天日期
// 格式化日期的函数
export function formatDate(date) {
  const year = date.getFullYear()
  const month = String(date.getMonth() + 1).padStart(2, '0')
  const day = String(date.getDate()).padStart(2, '0')
  return `${year}-${month}-${day}`
}

/**
 * @param {number} time
 * @param {string} option
 * @returns {string}
 */
export function formatTime(time, option) {
  if (('' + time).length === 10) {
    time = parseInt(time) * 1000
  } else {
    time = +time
  }
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option)
  } else {
    return (
      d.getMonth() +
      1 +
      '月' +
      d.getDate() +
      '日' +
      d.getHours() +
      '时' +
      d.getMinutes() +
      '分'
    )
  }
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function getQueryObject(url) {
  
  url = url == null ? window.location.href : url
  const search = url.substring(url.lastIndexOf('?') + 1)
  const obj = {}
  const reg = /([^?&=]+)=([^?&=]*)/g
  search.replace(reg, (rs, $1, $2) => {
    const name = decodeURIComponent($1)
    let val = decodeURIComponent($2)
    val = String(val)
    obj[name] = val
    return rs
  })
  return obj
}

/**
 * @param {string} input value
 * @returns {number} output value
 */
export function byteLength(str) {
  // returns the byte length of an utf8 string
  let s = str.length
  for (var i = str.length - 1; i >= 0; i--) {
    const code = str.charCodeAt(i)
    if (code > 0x7f && code <= 0x7ff) s++
    else if (code > 0x7ff && code <= 0xffff) s += 2
    if (code >= 0xDC00 && code <= 0xDFFF) i--
  }
  return s
}

/**
 * @param {Array} actual
 * @returns {Array}
 */
export function cleanArray(actual) {
  const newArray = []
  for (let i = 0; i < actual.length; i++) {
    if (actual[i]) {
      newArray.push(actual[i])
    }
  }
  return newArray
}

/**
 * @param {Object} json
 * @returns {Array}
 */
export function param(json) {
  if (!json) return ''
  return cleanArray(
    Object.keys(json).map(key => {
      if (json[key] === undefined) return ''
      return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
    })
  ).join('&')
}

/**
 * @param {string} url
 * @returns {Object}
 */
export function param2Obj(url) {
  const search = decodeURIComponent(url.split('?')[1]).replace(/\+/g, ' ')
  if (!search) {
    return {}
  }
  const obj = {}
  const searchArr = search.split('&')
  searchArr.forEach(v => {
    const index = v.indexOf('=')
    if (index !== -1) {
      const name = v.substring(0, index)
      const val = v.substring(index + 1, v.length)
      obj[name] = val
    }
  })
  return obj
}

/**
 * @param {string} val
 * @returns {string}
 */
export function html2Text(val) {
  const div = document.createElement('div')
  div.innerHTML = val
  return div.textContent || div.innerText
}

/**
 * Merges two objects, giving the last one precedence
 * @param {Object} target
 * @param {(Object|Array)} source
 * @returns {Object}
 */
export function objectMerge(target, source) {
  if (typeof target !== 'object') {
    target = {}
  }
  if (Array.isArray(source)) {
    return source.slice()
  }
  Object.keys(source).forEach(property => {
    const sourceProperty = source[property]
    if (typeof sourceProperty === 'object') {
      target[property] = objectMerge(target[property], sourceProperty)
    } else {
      target[property] = sourceProperty
    }
  })
  return target
}

/**
 * @param {HTMLElement} element
 * @param {string} className
 */
export function toggleClass(element, className) {
  if (!element || !className) {
    return
  }
  let classString = element.className
  const nameIndex = classString.indexOf(className)
  if (nameIndex === -1) {
    classString += '' + className
  } else {
    classString =
      classString.substr(0, nameIndex) +
      classString.substr(nameIndex + className.length)
  }
  element.className = classString
}

/**
 * @param {string} type
 * @returns {Date}
 */
export function getTime(type) {
  if (type === 'start') {
    return new Date().getTime() - 3600 * 1000 * 24 * 90
  } else {
    return new Date(new Date().toDateString())
  }
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
  let timeout, args, context, timestamp, result

  const later = function() {
    // 据上一次触发时间间隔
    const last = +new Date() - timestamp

    // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
    if (last < wait && last > 0) {
      timeout = setTimeout(later, wait - last)
    } else {
      timeout = null
      // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
      if (!immediate) {
        result = func.apply(context, args)
        if (!timeout) context = args = null
      }
    }
  }

  return function(...args) {
    context = this
    timestamp = +new Date()
    const callNow = immediate && !timeout
    // 如果延时不存在，重新设定延时
    if (!timeout) timeout = setTimeout(later, wait)
    if (callNow) {
      result = func.apply(context, args)
      context = args = null
    }

    return result
  }
}

/**
 * This is just a simple version of deep copy
 * Has a lot of edge cases bug
 * If you want to use a perfect deep copy, use lodash's _.cloneDeep
 * @param {Object} source
 * @returns {Object}
 */
export function deepClone(source) {
  if (!source && typeof source !== 'object') {
    throw new Error('error arguments', 'deepClone')
  }
  const targetObj = source.constructor === Array ? [] : {}
  Object.keys(source).forEach(keys => {
    if (source[keys] && typeof source[keys] === 'object') {
      targetObj[keys] = deepClone(source[keys])
    } else {
      targetObj[keys] = source[keys]
    }
  })
  return targetObj
}

/**
 * @param {Array} arr
 * @returns {Array}
 */
export function uniqueArr(arr) {
  return Array.from(new Set(arr))
}

/**
 * @returns {string}
 */
export function createUniqueString() {
  const timestamp = +new Date() + ''
  const randomNum = parseInt((1 + Math.random()) * 65536) + ''
  return (+(randomNum + timestamp)).toString(32)
}

/**
 * Check if an element has a class
 * @param {HTMLElement} elm
 * @param {string} cls
 * @returns {boolean}
 */
export function hasClass(ele, cls) {
  return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
}

/**
 * Add class to element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function addClass(ele, cls) {
  if (!hasClass(ele, cls)) ele.className += ' ' + cls
}

/**
 * Remove class from element
 * @param {HTMLElement} elm
 * @param {string} cls
 */
export function removeClass(ele, cls) {
  if (hasClass(ele, cls)) {
    const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
    ele.className = ele.className.replace(reg, ' ')
  }
}
/* 单位B转换位MB */
export function convertBytesToMB (bytes) {
  const bytesToMB = 1024 * 1024
  return (bytes / bytesToMB).toFixed(2)
}